feat: add Github Action to build the image

env.prod.example

@@ -0,0 +1,11 @@
+# Production Environment Variables
+# Copy this file to .env.prod and update the values
+
+# Database Configuration
+POSTGRES_DB=cactoide_production
+POSTGRES_USER=cactoide_prod
+POSTGRES_PASSWORD=your_secure_password_here
+
+# App Configuration
+NODE_ENV=production
+PORT=3000